Principle #1- Genetic Variation The White rhinos are much easier to spot then the gray rhinos in a dark colored habitat. The adult rhinos only concern are poachers, meanwhile they also have too protect there babies from the poachers as well, but the babies also have hyenas, lions.
Principle #2- Struggle for survival, overproduction The white rhinos only chance is for there future babies to survive there many predators like lions and poachers. Soon the gray rhinos population will grow.
Principle #3- Reproduction and different survival Since the poachers and predators go after an easier prey to go after the white rhino population is going down while the gray rhino population is going up.
Principle #4- Change in the gene pool The white rhino genes are not being passed on because of the poachers and the predators so there is mostly gray rhinos.